Auto Leveling and Lifts?

I posted over in the Suburban forum and got no help, can anyone here offer any advice?

Ok, so I'm reading and searching, but have a couple of questions still.

I'm going to do a ReadyRide style lift on my '01 Burb with auto leveling. If I only use the new torsion keys to level the vehicle (loose the front rake) does this freak out the rear auto leveling?

I feel like I'm inclined to do the lift, and maybe do the 1" rear lift as well. I assume that if I do this that the auto leveling must go, correct? At that point, using Strutmasters coilovers as replacements in the rear and what (?) shocks as a compliment in the front? I'm skeptical about using the front shock extenders rather than proper length shocks. Any opinions about that?